1020201102220 has 12 divisors (see below), whose sum is σ = 2142422314704. Its totient is φ = 408080440880.

The previous prime is 1020201102181. The next prime is 1020201102259. The reversal of 1020201102220 is 222011020201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1020201102181) and next prime (1020201102259).

It is a self number, because there is not a number n which added to its sum of digits gives 1020201102220.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25505027536 + ... + 25505027575.

It is an arithmetic number, because the mean of its divisors is an integer number (178535192892).

Almost surely, 2^{1020201102220} is an apocalyptic number.

1020201102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020201102220 is an abundant number, since it is smaller than the sum of its proper divisors (1122221212484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020201102220 is a wasteful number, since it uses less digits than its factorization.

1020201102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51010055120 (or 51010055118 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1020201102220 its reverse (222011020201), we get a palindrome (1242212122421).

The spelling of 1020201102220 in words is "one trillion, twenty billion, two hundred one million, one hundred two thousand, two hundred twenty".